JP2016127601A - Flexible RFID antenna - Google Patents
Flexible RFID antenna Download PDFInfo
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- JP2016127601A JP2016127601A JP2015255689A JP2015255689A JP2016127601A JP 2016127601 A JP2016127601 A JP 2016127601A JP 2015255689 A JP2015255689 A JP 2015255689A JP 2015255689 A JP2015255689 A JP 2015255689A JP 2016127601 A JP2016127601 A JP 2016127601A
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- 239000000758 substrate Substances 0.000 claims abstract description 69
- 239000004020 conductor Substances 0.000 claims abstract description 68
- 239000010410 layer Substances 0.000 claims description 25
- 239000012790 adhesive layer Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000011247 coating layer Substances 0.000 claims description 10
- 239000004642 Polyimide Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 9
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- 238000004519 manufacturing process Methods 0.000 description 10
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- 238000004891 communication Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
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- 229910052799 carbon Inorganic materials 0.000 description 2
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- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 229940079593 drug Drugs 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
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- 244000144972 livestock Species 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Details Of Aerials (AREA)
Abstract
Description
本発明は、無線周波数識別（ＲＦＩＤ）装置に関し、具体的には、このような装置のためのフレキシブルＲＦＩＤアンテナに関する。 The present invention relates to radio frequency identification (RFID) devices, and in particular to flexible RFID antennas for such devices.
通信産業の発展とともに、ますます多くの分野においてＲＦＩＤ技術が幅広く応用されている。無線周波数識別技術は、識別システムと特定の物体との間に機械的接触又は光学的接触を確立することなく、無線信号に基づいて特定の物体の識別、並びに関連データの読み取り及び書き込みを行うことができる無線通信技術である。 With the development of the communication industry, RFID technology is widely applied in more and more fields. Radio frequency identification technology identifies specific objects and reads and writes related data based on radio signals without establishing mechanical or optical contact between the identification system and the specific object It is a wireless communication technology that can.
ＲＦＩＤ技術は、多くの産業で応用されている。例えば、生産中の自動車にタグを取り付けて、工場関係者が、生産ライン上の自動車の進捗を追跡することができる。倉庫内で薬の位置を追跡することもできる。家畜及びペットに、これらの確実な識別を可能にする無線周波数タグを取り付けることもできる（「確実な識別」とは、複数の動物による同じ識別の使用を避けることを意味する」）。例えば、ＲＦＩＤ技術に基づく識別カードは、従業員が鍵の掛かったビルに入ることを可能にし、自動車内の無線周波数トランスポンダを用いて、有料道路及び駐車場に関連する料金を支払うこともできる。 RFID technology is applied in many industries. For example, a tag can be attached to a car in production so that plant personnel can track the progress of the car on the production line. You can also track the location of medicines in the warehouse. Livestock and pets can also be fitted with radio frequency tags that allow for these positive identifications ("reliable identification" means avoiding the use of the same identification by multiple animals "). For example, identification cards based on RFID technology allow employees to enter a locked building and can use radio frequency transponders in the car to pay tolls associated with toll roads and parking.
ＰＯＳ装置などのポータブル電子装置では、時に安全保護装置を樹脂で覆ったり、或いは包装したりする必要があり、この結果、安全保護装置の構造が重くて厚いものになる。従って、ＰＯＳ装置の分野では、内部空間を広げてより多くのコンポーネントを収容するためにＲＦＩＤアンテナが広く用いられ、これによってＰＯＳ装置の小型化及び軽量化を実現している。 In a portable electronic device such as a POS device, it is sometimes necessary to cover or package the safety protection device with a resin. As a result, the structure of the safety protection device is heavy and thick. Therefore, in the field of POS devices, RFID antennas are widely used to expand the internal space and accommodate more components, thereby realizing miniaturization and weight reduction of the POS device.
図１に、従来技術を用いたＲＦＩＤアンテナの製造工程を示す。基材１は、２５０ｍｍ×３２０ｍｍのフレキシブル基材であり、ここから８つのＲＦＩＤアンテナ基板２が切り取られる。アンテナ基板２上の層を形成する導体の螺旋コイルを印刷法又はエッチング法によって形成して螺旋アンテナを形成する。導体は、銅トレース又はその他の導電性トレースとすることができる。導体の端部は、内周及び外周に現れる。アンテナの内周の端部は、２つの端部が共に他のポートに接続されるように外周に導かれる必要があるので、基板上には、内周を外周に伝導的に接続する貫通穴が配置される。従って、フレキシブル基材は両面基材でなければならず、すなわち基材の両面に導電線が配置されることがあり、これによってコストが上昇し、生産工程が複雑化する。また、このアンテナ作製法では、廃棄材料率が高いことに起因して材料が効率的に使用されない。これにより、ＰＯＳ装置のコストがさらに上昇する。 FIG. 1 shows a manufacturing process of an RFID antenna using a conventional technique. The base material 1 is a flexible base material of 250 mm × 320 mm, from which eight RFID antenna substrates 2 are cut. A helical coil of a conductor that forms a layer on the antenna substrate 2 is formed by a printing method or an etching method to form a helical antenna. The conductor may be a copper trace or other conductive trace. The ends of the conductor appear on the inner periphery and the outer periphery. Since the end of the inner periphery of the antenna needs to be guided to the outer periphery so that both ends are connected to other ports, a through hole is formed on the substrate to conductively connect the inner periphery to the outer periphery. Is placed. Therefore, the flexible substrate must be a double-sided substrate, that is, conductive wires may be disposed on both sides of the substrate, which increases the cost and complicates the production process. Further, in this antenna manufacturing method, the material is not efficiently used due to the high waste material rate. This further increases the cost of the POS device.
従って、材料利用率の高いアンテナが要望されている。 Therefore, an antenna with a high material utilization rate is desired.
従って、本発明は、その１つの態様では、フレキシブルＲＦＩＤアンテナであって、第１の端部と、第２の端部と、引き出し端子とを含むフレキシブル片面基板と、基板上に配置されて、基板の第１の端部と第２の端部との間に延びる複数の導体とを備え、複数の導体のうちの１つの導体は、引き出し端子において分断され、引き出し端子の端部に延びて接続端子を形成し、フレキシブルＲＦＩＤアンテナは、複数の導体を基板と被覆層との間に挟み込むように基板に施されたフレキシブル被覆層をさらに備え、基板の第１の端部における複数の導体の端部は、基板の第２の端部における複数の導体の端部に千鳥配置でそれぞれ接続されて螺旋ＲＦＩＤコイルを形成するフレキシブルＲＦＩＤアンテナを提供する。 Accordingly, the present invention, in one aspect thereof, is a flexible RFID antenna, which is disposed on a flexible single-sided substrate including a first end, a second end, and a lead terminal, A plurality of conductors extending between the first end and the second end of the substrate, wherein one of the plurality of conductors is divided at the lead terminal and extends to the end of the lead terminal The flexible RFID antenna further includes a flexible coating layer applied to the substrate so that the plurality of conductors are sandwiched between the substrate and the coating layer, and the flexible RFID antenna includes a plurality of conductors at the first end of the substrate. The ends provide a flexible RFID antenna that is connected in a staggered arrangement to the ends of the plurality of conductors at the second end of the substrate to form a spiral RFID coil.
基板及び被覆層は、いずれも細長い形状であることが好ましい。 Both the substrate and the coating layer are preferably elongated.
基板は、１２μｍ〜１２５μｍの厚みを有するポリエステル（ＰＥＴ）フィルム又はポリイミド（ＰＩ）フィルムの第１の絶縁層を含むことが好ましい。 The substrate preferably includes a first insulating layer of a polyester (PET) film or a polyimide (PI) film having a thickness of 12 μm to 125 μm.
基板は、複数の導体を基板に取り付ける第１の接着層をさらに含むことが好ましい。 The substrate preferably further includes a first adhesive layer that attaches the plurality of conductors to the substrate.
被覆層は、１２μｍ〜５０μｍの厚みを有するポリエステル（ＰＥＴ）フィルム、ポリイミド（ＰＩ）フィルム又は絶縁インク層の第２の絶縁層を含むことが好ましい。 The covering layer preferably includes a second insulating layer of a polyester (PET) film, a polyimide (PI) film or an insulating ink layer having a thickness of 12 μm to 50 μm.
被覆層は、第２の絶縁層を基板に取り付ける第２の接着層をさらに含むことが好ましい。 The covering layer preferably further includes a second adhesive layer for attaching the second insulating layer to the substrate.
被覆層は、絶縁インク層を含むことが好ましい。 The coating layer preferably includes an insulating ink layer.
アンテナの基板は、アンテナを固定する固定部を有することが好ましい。 The substrate of the antenna preferably has a fixing portion for fixing the antenna.
アンテナの第１の端部及び第２の端部は互いに重なり合い、第１の端部における複数の導体の端部は、第２の端部における複数の導体のそれぞれの端部にリベットによって電気的に接続されることが好ましい。 The first end and the second end of the antenna overlap each other, and the ends of the plurality of conductors at the first end are electrically connected to the respective ends of the plurality of conductors at the second end by rivets. It is preferable to be connected to.
第２の態様によれば、本発明は、本体と、回路基板と、フレキシブルＲＦＩＤアンテナとを備えた電子装置であって、フレキシブルＲＦＩＤアンテナは、第１の端部と、第２の端部と、引き出し端子とを含むフレキシブル片面基板と、基板上に配置されて、基板の第１の端部と第２の端部との間に延びる複数の平行導体とを含み、複数の導体のうちの１つの導体は、引き出し端子において分断され、引き出し端子の端部に延びて接続端子を形成し、フレキシブルＲＦＩＤアンテナは、複数の導体を基板と被覆層との間に挟み込むように基板に施されたフレキシブル被覆層をさらに含み、基板の第１の端部における複数の導体の端部は、基板の第２の端部における複数の導体の端部に千鳥配置でそれぞれ接続されて螺旋ＲＦＩＤコイルを形成し、螺旋アンテナは、本体の周囲に配置され、アンテナの引き出し端子の接続端子は、ＰＯＳ装置に電気的に接続された電子装置を提供する。 According to a second aspect, the present invention is an electronic device comprising a main body, a circuit board, and a flexible RFID antenna, the flexible RFID antenna comprising: a first end; a second end; , A flexible single-sided board including a lead terminal, and a plurality of parallel conductors disposed on the board and extending between the first end and the second end of the board, of the plurality of conductors One conductor is divided at the lead terminal and extends to the end of the lead terminal to form a connection terminal. The flexible RFID antenna is applied to the substrate so that the plurality of conductors are sandwiched between the substrate and the covering layer. Further comprising a flexible covering layer, the ends of the plurality of conductors at the first end of the substrate are respectively connected in a staggered arrangement to the ends of the plurality of conductors at the second end of the substrate to form a spiral RFID coil Shi Helix antenna is disposed around the body, the connection terminals of the lead terminal of the antenna provides an electronic device electrically connected to the POS device.
任意に、アンテナの基板は固定部を有し、アンテナは、この固定部を介してＰＯＳ装置の本体に固定される。 Optionally, the antenna substrate has a fixing portion, and the antenna is fixed to the main body of the POS device via the fixing portion.
アンテナは、ＰＯＳ装置の本体に接着剤を介して固定されることが好ましい。 The antenna is preferably fixed to the main body of the POS device via an adhesive.
電子装置は、ＰＯＳ装置であることが好ましい。 The electronic device is preferably a POS device.
このようなアンテナを使用すると、材料利用率が高く、またアンテナ基板の片面のみに回路を印刷すればよいので、生産工程が単純化されてコストが大幅に削減される。 When such an antenna is used, the material utilization rate is high, and the circuit only needs to be printed on one side of the antenna substrate. This simplifies the production process and greatly reduces costs.
以下、添付図面の図を参照しながら、本発明の好ましい実施形態をほんの一例として説明する。図では、複数の図に出現する同一の構造、要素又は部品には、一般にこれらが出現する全ての図において同じ参照番号を付している。一般に、図に示す構成要素及び特徴部の寸法は、表現の便宜上明瞭にするために選択したものであり、必ずしも縮尺通りではない。以下、各図を列挙する。 The preferred embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings. In the figures, identical structures, elements or parts appearing in more than one figure are generally denoted by the same reference numerals in all the figures in which they appear. In general, the dimensions of the components and features shown in the figures are selected for the sake of clarity and are not necessarily to scale. Each figure is listed below.
図２に、本発明の好ましい実施形態によるＲＦＩＤアンテナ基材の例示的な構造を示す。この実施形態では、基材１０全体が、矩形の片面フレキシブル基材であり、すなわち基材１０の片面のみに回路を印刷又はエッチングすることができる。アンテナ２０は、基本的に引き延ばした矩形などの細長い形状になるように設計され、回路を印刷又はエッチングできる基材１０の表面上に順に配置される。個々のアンテナ２０は、基材１０から切り取られる。各アンテナ２０上には、印刷法又はエッチング法によって複数の平行導体２２４が配置される（図５を参照）。このような工程を通じ、６０９ｍｍ×３２０ｍｍの基材１０上に２４個のアンテナを形成することができる。従って、より良好な材料利用率によって生産効率が大幅に向上する。 FIG. 2 illustrates an exemplary structure of an RFID antenna substrate according to a preferred embodiment of the present invention. In this embodiment, the whole base material 10 is a rectangular single-sided flexible base material, that is, a circuit can be printed or etched only on one side of the base material 10. The antenna 20 is basically designed to have an elongated shape such as an elongated rectangle, and is sequentially arranged on the surface of the substrate 10 on which a circuit can be printed or etched. Individual antennas 20 are cut from the substrate 10. A plurality of parallel conductors 224 are disposed on each antenna 20 by printing or etching (see FIG. 5). Through these steps, 24 antennas can be formed on the substrate 609 mm × 320 mm. Therefore, the production efficiency is greatly improved by the better material utilization rate.
通常、導体トレース２２４は銅材料で作製されるが、アルミニウム、銀、炭素、銀と炭素の混合物、透明な導電性ポリマー、又はその他の導電性インクで作製することもできる。これらの材料の各々は、ＲＦＩＤアンテナの動作及び機能に適した特定の特性を有する。導体トレース２２４の材料は、ＲＦＩＤアンテナの機能に応じて選択される。 Conductor traces 224 are typically made of a copper material, but can also be made of aluminum, silver, carbon, a mixture of silver and carbon, a transparent conductive polymer, or other conductive ink. Each of these materials has specific characteristics suitable for the operation and function of the RFID antenna. The material of the conductor trace 224 is selected according to the function of the RFID antenna.
図３に、図２の基材から切り取った例示的な１つのアンテナを示す。アンテナ２０は、２つの端部２６及び２８と、引き出し端子２９とを有する細長い本体２２を含む。図５に示すように、導体２２４のうちの１つは分断されて引き出し端子に延び、アンテナをＰＯＳ装置などの電子装置に接続する引き出し接続部を形成する。基板上には、導体を覆う被覆層２２８が設けられる（図４を参照）。コネクタ３０（図６を参照）への接続を可能にするように、端部２６及び２８からは被覆層２２８を除去して導体を露出させる。アンテナ本体２２は、２つの端部から離れた位置に固定部２４を有する。固定部２４には、アンテナを電子装置に固定するための固定穴が設けられる。当業者であれば、アンテナ本体は接着剤によって電子装置に取り付けることもでき、従って固定部は必須ではないと理解することができる。 FIG. 3 shows an exemplary antenna cut from the substrate of FIG. The antenna 20 includes an elongated body 22 having two ends 26 and 28 and a lead terminal 29. As shown in FIG. 5, one of the conductors 224 is split and extends to a lead terminal to form a lead connection that connects the antenna to an electronic device such as a POS device. A covering layer 228 is provided on the substrate to cover the conductor (see FIG. 4). The covering layer 228 is removed from the ends 26 and 28 to expose the conductor so as to allow connection to the connector 30 (see FIG. 6). The antenna body 22 has a fixed portion 24 at a position away from the two ends. The fixing portion 24 is provided with a fixing hole for fixing the antenna to the electronic device. A person skilled in the art can understand that the antenna body can be attached to the electronic device by an adhesive, and therefore the fixing portion is not essential.
図４は、図３のアンテナのＡ−Ａに沿った概略的断面図である。１つの実施形態では、アンテナが、片面絶縁基板２２２、接着層２２３、導電性トレースによって形成された複数の平行導体２２４、接着層２２６及び絶縁被覆層２２８を含む。接着層２２３及び接着層２２６は、いずれも絶縁材料で作製される。生産工程では、最初に接着層２２３を含む基板２２２上に印刷法又はエッチング法によって導体２２４を配置し、その後に接着層２２６を含む被覆層２２８を基板上に取り付け、従って基板２２２と被覆層２２８の間に平行導体２２４を挟み込む。複数の平行導体２２４は、互いに電気的に絶縁される。 4 is a schematic cross-sectional view taken along the line AA of the antenna of FIG. In one embodiment, the antenna includes a single-sided insulating substrate 222, an adhesive layer 223, a plurality of parallel conductors 224 formed by conductive traces, an adhesive layer 226, and an insulating coating layer 228. The adhesive layer 223 and the adhesive layer 226 are each made of an insulating material. In the production process, the conductor 224 is first disposed on the substrate 222 including the adhesive layer 223 by printing or etching, and then the covering layer 228 including the adhesive layer 226 is attached on the substrate, and thus the substrate 222 and the covering layer 228 are attached. A parallel conductor 224 is sandwiched between the two. The plurality of parallel conductors 224 are electrically insulated from each other.
別の実施形態では、接着層２２３を省略し、導電性インクを用いてトレースを印刷することなどにより、基板２２２上に導体２２４を直接固定することができる。 In another embodiment, the conductor 224 can be secured directly on the substrate 222, such as by omitting the adhesive layer 223 and printing traces using conductive ink.
別の実施形態では、被覆層２２８及び接着層２２６を単一の絶縁インクの層に置き換え、これによってアンテナの厚みをさらに減少させることができる。 In another embodiment, the cover layer 228 and the adhesive layer 226 can be replaced with a single layer of insulating ink, which further reduces the thickness of the antenna.
１つの実施形態では、基板２２２がポリマーフィルムであり、好ましくはポリエチレンテレフタレート（一般にＤａｃｒｏｎ（ダクロン）として知られているＰＥＴ）フィルムである。或いは、基板２２２は、１２μｍ〜１２５μｍの厚みを有するフレキシブルフィルムである。当然ながら、基板２２２は、必要に応じて厚くすることもできる。基板２２２は、以下に限定されるわけではないが、ポリカーボネート、ポリエチレンナフタレート（ＰＥＮ）、ポリイミド及びポリ塩化ビニル（ＰＶＣ）を含む他のポリマーフィルムの変種であってもよいと理解することができる。基板２２２は、透明とすることも、或いは不透明な黒色又は白色などの有色とすることもできる。 In one embodiment, the substrate 222 is a polymer film, preferably a polyethylene terephthalate (PET commonly known as Dacron) film. Alternatively, the substrate 222 is a flexible film having a thickness of 12 μm to 125 μm. Of course, the substrate 222 can be thickened as required. It can be appreciated that the substrate 222 may be a variation of other polymer films including, but not limited to, polycarbonate, polyethylene naphthalate (PEN), polyimide, and polyvinyl chloride (PVC). . The substrate 222 can be transparent or colored such as opaque black or white.
接着層２２３及び２２６は、感熱接着層であることが好ましい。接着層２２３は、導体２２４を基板２２２に取り付けるように構成される。或いは、接着層は、エポキシ樹脂又は湿気硬化ポリウレタンなどの液状接着剤とすることもできる。最初に片面基板２２２と導体２２４との間に液状接着剤を配置又は印刷し、その後に湿潤エネルギー、熱エネルギー又は紫外線エネルギーによって液状接着剤を硬化させ、従って片面基板２２２と導体２２４との間に永久接合部を形成する。これらのタイプの接着剤は加圧接着剤ではないが、同じ原理に従って機能することができる。基板２２２の材料に応じて、特定の付着性を有する異なる加圧接着剤を使用することができ、例えば特定の接着要件のために専用の加圧接着剤を特別に開発することもできる。 The adhesive layers 223 and 226 are preferably heat-sensitive adhesive layers. The adhesive layer 223 is configured to attach the conductor 224 to the substrate 222. Alternatively, the adhesive layer can be a liquid adhesive such as an epoxy resin or moisture cured polyurethane. First, a liquid adhesive is placed or printed between the single-sided substrate 222 and the conductor 224, and then the liquid adhesive is cured by wet energy, thermal energy, or ultraviolet energy, and thus between the single-sided substrate 222 and the conductor 224. A permanent joint is formed. These types of adhesives are not pressure adhesives, but can function according to the same principles. Depending on the material of the substrate 222, different pressure adhesives with specific adhesion properties can be used, for example special pressure adhesives can be developed specifically for specific bonding requirements.
図５ａ〜図５ｃは、本発明の一実施形態による、説明を明確にするためにアンテナ本体の被覆層２２８を省略したＲＦＩＤアンテナの概略図である。導体２２４は、細長い基板上に平行に配置される。基板２２２の一端は、導体の導体端部「Ａ」、「Ｂ」及び「Ｃ」を有し、他端は、導体の導体端部「ａ」、「ｂ」及び「ｃ」を有する。アンテナ本体２２は、空間的に渦を巻き、すなわちアンテナ本体２２は、電子装置（図示せず）に巻き回される。基板２２２の端部は、導体端部「Ａ」、「Ｂ」及び「Ｃ」が導体端部「ａ」、「ｂ」及び「ｃ」に重なるようにして重なり合う。各導体端部の対は、図６に示すようなリベット３０によって互いに電気的に接続される。このように、リベットが導体のそれぞれの端部を互いに接合すると、導体は完全な螺旋コイルを形成する一方で、引き出し端子によってアンテナと電子装置の容易な接続が可能になる。この結果、貫通穴によって導体をブリッジングした両面基板を使用する必要性が排除される。 5a to 5c are schematic views of an RFID antenna in which the antenna body covering layer 228 is omitted for clarity of explanation, according to an embodiment of the present invention. The conductor 224 is disposed in parallel on the elongated substrate. One end of the substrate 222 has conductor end portions “A”, “B”, and “C” of the conductor, and the other end has conductor end portions “a”, “b”, and “c” of the conductor. The antenna body 22 spirals spatially, that is, the antenna body 22 is wound around an electronic device (not shown). The ends of the substrate 222 overlap such that the conductor ends “A”, “B”, and “C” overlap the conductor ends “a”, “b”, and “c”. Each pair of conductor ends is electrically connected to each other by a rivet 30 as shown in FIG. Thus, when the rivets join the respective ends of the conductors together, the conductors form a complete helical coil while the lead terminals allow easy connection between the antenna and the electronic device. As a result, the need to use a double-sided board with conductors bridged by through holes is eliminated.
ＰＯＳ装置４０は、クレジットカード４４を挿入できるスロットを含む。ＰＯＳ装置のディスプレイ画面は、柱状の本体４２を備える。この柱状の本体４２にアンテナ２０巻き回し、ＰＯＳ装置の内部に回路基板（図示せず）を配置し、回路基板上にコネクタを設け、コネクタに引き出し端子２９を挿入してアンテナを電子回路に接続する。ＰＯＳ装置の使用時には、ユーザのクレジットカードを、スロットによってＰＯＳ装置と接触通信させることも、或いはクレジットカードをアンテナの近くに配置し、アンテナ２０を介してＰＯＳ装置と非接触通信させることもできる。 The POS device 40 includes a slot into which a credit card 44 can be inserted. The display screen of the POS device includes a columnar main body 42. The antenna 20 is wound around the columnar body 42, a circuit board (not shown) is disposed inside the POS device, a connector is provided on the circuit board, and a lead terminal 29 is inserted into the connector to connect the antenna to an electronic circuit. To do. When the POS device is used, the user's credit card can be brought into contact communication with the POS device through a slot, or the credit card can be arranged near the antenna and can be brought into contactless communication with the POS device via the antenna 20.
図６に、図５のＲＦＩＤアンテナに適用される例示的なリベット３０を示す。リベット３０は、本体３２と、その上に配置された複数のスパイク３４とを含む金属導体で形成される。使用時には、アンテナの端部２６及び端部２８が互いに重なり合う。導体は、基板２２２によって分離されるので互いに絶縁される。アンテナの端部２６の導体の端部「Ａ」は、アンテナの端部２８の導体の端部「ｂ」に接続され、アンテナの端部２６の導体の端部「Ｂ」は、アンテナの端部２８の導体の端部「ｃ」に接続され、アンテナの端部２６の導体の端部「Ｃ」は、アンテナの端部２８の導体の端部「ａ」に接続される。導体２２４のうちの１つの導体の端部２６と端部２８とが互いに重なり合う部分に複数のスパイク２４のうちの１つのスパイクを侵入させ、上層内の平行導体のうちの１つの平行導体の前端を下層内の平行導体のうちの１つの平行導体の後端にスパイク３４を介して接続し、これによって導体間の電気的接続を実現する。 FIG. 6 shows an exemplary rivet 30 applied to the RFID antenna of FIG. The rivet 30 is formed of a metal conductor that includes a body 32 and a plurality of spikes 34 disposed thereon. In use, the antenna end 26 and end 28 overlap one another. The conductors are isolated from each other because they are separated by the substrate 222. The conductor end “A” of the antenna end 26 is connected to the conductor end “b” of the antenna end 28, and the conductor end “B” of the antenna end 26 is connected to the end of the antenna. The conductor end “c” of the antenna end 26 is connected to the conductor end “a” of the antenna end 28. One of the plurality of spikes 24 is inserted into a portion where the end portion 26 and the end portion 28 of one of the conductors 224 overlap each other, and the front end of one of the parallel conductors in the upper layer is inserted. Is connected to the rear end of one of the parallel conductors in the lower layer via a spike 34, thereby realizing an electrical connection between the conductors.
本発明は、空間的に配置されたアンテナを提供することによってアンテナのコイルのブリッジングを避け、従って材料利用率を高め、生産コストを抑え、生産効率を向上させる。 The present invention avoids bridging of antenna coils by providing spatially arranged antennas, thus increasing material utilization, reducing production costs, and improving production efficiency.
ＰＯＳ装置は、電子装置の好ましい応用にすぎず、本開示によるアンテナは、コイルアンテナを使用する必要がある他の電子装置においても使用できると理解することができる。 It can be understood that the POS device is only a preferred application of an electronic device, and the antenna according to the present disclosure can be used in other electronic devices that need to use a coil antenna.
本出願の明細書及び特許請求の範囲では、記述する項目又は特徴の存在を明示する一方でさらなる項目又は特徴の存在を排除しないように、「備える、含む、有する（ｃｏｍｐｒｉｓｅ、ｉｎｃｌｕｄｅ、ｃｏｎｔａｉｎ及びｈａｖｅ）」という動詞、並びにその派生形の各々を包括的な意味で使用している。 In the specification and claims of this application, the terms “comprise, include, contain and have” are included so as to specify the presence of the item or feature being described, but not to exclude the presence of additional items or features. ) "And its derivatives are used in a comprehensive sense.
明確化のために別個の実施形態の文脈で説明した本発明のいくつかの特徴は、単一の実施形態において組み合わせて提供することもできると理解されたい。これとは逆に、簡潔さを期すために単一の実施形態の文脈で説明した本発明の様々な特徴を別個に、又はいずれかの好適な下位の組み合わせで提供することもできる。 It should be understood that some features of the invention described in the context of separate embodiments for clarity may also be provided in combination in a single embodiment. Conversely, the various features of the invention described in the context of a single embodiment for the sake of brevity may be provided separately or in any suitable subcombination.
上述した実施形態はほんの一例にすぎず、当業者には、添付の特許請求の範囲によって規定される本発明の範囲から逸脱することなく、他の様々な修正が明らかになるであろう。 The above-described embodiments are merely examples, and various other modifications will be apparent to those skilled in the art without departing from the scope of the invention as defined by the appended claims.
２２２ 基板
２２４ 導体
２６ 端部
２８ 端部
２９ 引き出し端子
３０ コネクタ
４０ ＰＯＳ装置
４２ 本体
４４ クレジットカード
222 Substrate 224 Conductor 26 End 28 End 29 Lead-out Terminal 30 Connector 40 POS Device 42 Main Body 44 Credit Card
Claims (12)
第１の端部と、第２の端部と、引き出し端子とを含むフレキシブル片面基板と、
前記基板上に配置されて、前記基板の前記第１の端部と前記第２の端部との間に延びる複数の導体と、
を備え、前記複数の導体のうちの１つの導体は、前記引き出し端子において分断され、前記引き出し端子の端部に延びて接続端子を形成し、前記フレキシブルＲＦＩＤアンテナは、
前記複数の導体を前記基板と前記被覆層との間に挟み込むように前記基板に施されたフレキシブル被覆層をさらに備え、
前記基板の前記第１の端部における前記複数の導体の端部は、前記基板の前記第２の端部における前記複数の導体の端部に千鳥配置でそれぞれ接続されて螺旋ＲＦＩＤコイルを形成する、
ことを特徴とするフレキシブルＲＦＩＤアンテナ。 A flexible RFID antenna,
A flexible single-sided substrate including a first end, a second end, and a lead terminal;
A plurality of conductors disposed on the substrate and extending between the first end and the second end of the substrate;
One conductor of the plurality of conductors is divided at the lead terminal and extends to an end of the lead terminal to form a connection terminal.
A flexible coating layer applied to the substrate so as to sandwich the plurality of conductors between the substrate and the coating layer;
The ends of the plurality of conductors at the first end of the substrate are respectively connected in a staggered arrangement to the ends of the plurality of conductors at the second end of the substrate to form a spiral RFID coil. ,
A flexible RFID antenna characterized by the above.
請求項１に記載のアンテナ。 The first end and the second end of the antenna overlap each other, and the ends of the plurality of conductors at the first end are each of the plurality of conductors at the second end. Electrically connected by rivets to the end of the
The antenna according to claim 1.
請求項１又は２に記載のアンテナ。 The substrate and the coating layer are both elongated.
The antenna according to claim 1 or 2.
請求項１、２又は３に記載のアンテナ。 The substrate includes a first insulating layer of polyester (PET) film or polyimide (PI) film having a thickness of 12 μm to 125 μm,
The antenna according to claim 1, 2 or 3.
請求項１から４のいずれかに記載のアンテナ。 The substrate further includes a first adhesive layer for attaching the plurality of conductors to the substrate.
The antenna according to any one of claims 1 to 4.
請求項１から５のいずれかに記載のアンテナ。 The covering layer includes a second insulating layer of a polyester (PET) film, a polyimide (PI) film or an insulating ink layer having a thickness of 12 μm to 50 μm.
The antenna according to any one of claims 1 to 5.
請求項６に記載のアンテナ。 The covering layer further includes a second adhesive layer that attaches the second insulating layer to the substrate.
The antenna according to claim 6.
請求項１から７のいずれかに記載のアンテナ。 The coating layer includes an insulating ink layer,
The antenna according to claim 1.
請求項１から８のいずれかに記載のアンテナ。 The substrate of the antenna has a fixing portion for fixing the antenna;
The antenna according to claim 1.
本体と、
回路基板と、
請求項１から９のいずれか１項に記載のＲＦＩＤアンテナと、
を備え、前記螺旋アンテナは、前記本体の周囲に配置され、前記アンテナの前記引き出し端子の前記接続端子は、前記ＰＯＳ装置に電気的に接続される、
ことを特徴とする電子装置。 An electronic device,
The body,
A circuit board;
The RFID antenna according to any one of claims 1 to 9,
The spiral antenna is disposed around the body, and the connection terminal of the extraction terminal of the antenna is electrically connected to the POS device.
An electronic device characterized by that.
請求項１０に記載の電子装置。 The antenna is fixed to the main body of the POS device via an adhesive.
The electronic device according to claim 10.
請求項１０又は１１に記載の電子装置。 The electronic device is a POS device.
The electronic device according to claim 10 or 11.
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| CN201410855007.1 | 2014-12-30 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105811083A (en) | 2016-07-27 |
| CN105811083B (en) | 2020-09-01 |
| DE102015122362A1 (en) | 2016-06-30 |
| JP6810519B2 (en) | 2021-01-06 |
| US20160190694A1 (en) | 2016-06-30 |
| US10050347B2 (en) | 2018-08-14 |
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